Brandy has a list of the estimated costs for each semester to attend a two-year community college. What is the total estimated cost to attend college for two years? a
$6,600
b
$26,400
c
$105,600
d
$13,200

the answer is a

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

i would you but i don't under stand the qustion

step-by-step explanation:

answer:   2 multiplied by x =24

step-by-step explanation: